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| author | Raul Cardenas <Ulises.Cardenas@freescale.com> | 2015-02-27 11:22:06 -0600 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-03-02 09:57:06 +0100 |
| commit | 0200020bc2b8192c31dc57c600865267f51bface (patch) | |
| tree | 77e47e958773096b7cb53c20a0c6a1f4d83e46d8 /arch/arm/imx-common/Makefile | |
| parent | b5cd10b911f632f74e1211ef786989781d2a1ca1 (diff) | |
| download | talos-obmc-uboot-0200020bc2b8192c31dc57c600865267f51bface.tar.gz talos-obmc-uboot-0200020bc2b8192c31dc57c600865267f51bface.zip | |
imx6: Added DEK blob generator command
Freescale's SEC block has built-in Data Encryption
Key(DEK) Blob Protocol which provides a method for
protecting a DEK for non-secure memory storage.
SEC block protects data in a data structure called
a Secret Key Blob, which provides both confidentiality
and integrity protection.
Every time the blob encapsulation is executed,
a AES-256 key is randomly generated to encrypt the DEK.
This key is encrypted with the OTP Secret key
from SoC. The resulting blob consists of the encrypted
AES-256 key, the encrypted DEK, and a 16-bit MAC.
During decapsulation, the reverse process is performed
to get back the original DEK. A caveat to the blob
decapsulation process, is that the DEK is decrypted
in secure-memory and can only be read by FSL SEC HW.
The DEK is used to decrypt data during encrypted boot.
Commands added
--------------
dek_blob - encapsulating DEK as a cryptgraphic blob
Commands Syntax
---------------
dek_blob src dst len
Encapsulate and create blob of a len-bits DEK at
address src and store the result at address dst.
Signed-off-by: Raul Cardenas <Ulises.Cardenas@freescale.com>
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
Signed-off-by: Ulises Cardenas <ulises.cardenas@freescale.com>
Signed-off-by: Ulises Cardenas-B45798 <Ulises.Cardenas@freescale.com>
Diffstat (limited to 'arch/arm/imx-common/Makefile')
| -rw-r--r-- | arch/arm/imx-common/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile index 25a9d4ce12..606482f7a3 100644 --- a/arch/arm/imx-common/Makefile +++ b/arch/arm/imx-common/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o endif obj-$(CONFIG_CMD_BMODE) += cmd_bmode.o obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o +obj-$(CONFIG_CMD_DEKBLOB) += cmd_dek.o quiet_cmd_cpp_cfg = CFGS $@ cmd_cpp_cfg = $(CPP) $(cpp_flags) -x c -o $@ $< |
